i've driven mk7 fiesta's for the past few years on a daily basis, they are brilliant but there are 2 things that are really infuriating

if you put the pollen filter in the wrong way around it blocks the air flow and it's really rubbish, plenty of cars we've had have had this done by the idiots who are supposed to service them

the seat adjusters are on the sill side of the car, so difficult to twiddle that knob

but other than that they are fantastic cars to drive